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United States Patent | 5,131,787 |
Goldberg | July 21, 1992 |
A method of forming and the construction of a temporary roadway mat system, comprising a number of longitudinally arrays of overlapping on-road truck tire sidewalls, the arrays covering the expected width of the roadway and being supported from beneath by a floor member made up of a number of relatively flatly arranged on-road truck tread portions, in which the sidewalls are connected together and also connected to the tread portions to create a strong unitary floatational instant roadway surface over unstable ground.
Inventors: | Goldberg; Jerry (462 Arbor Cir., Youngstown, OH 44505) |
Appl. No.: | 578881 |
Filed: | September 7, 1990 |
Current U.S. Class: | 404/32; 404/35; 404/71; 428/903.3 |
Intern'l Class: | E01C 005/18; E01C 005/16; E01C 007/00 |
Field of Search: | 404/35,36,32,33,28,70,71,16,17 |
3850537 | Nov., 1974 | Bynum, Jr. | 404/17. |
4067197 | Jan., 1978 | Ritter | 404/35. |
4142821 | Mar., 1979 | Doring. | |
4152875 | May., 1979 | Soland | 404/35. |
4801217 | Jan., 1989 | Goldberg | 404/35. |
4850738 | Jul., 1989 | Niemi. | |
Foreign Patent Documents | |||
55-9924 | Jan., 1980 | JP. | |
61-1712 | Jan., 1986 | JP. |